Home / 717,243.86-1,075,058.42-312,776.44

Finding the Fourth Proportional to 717,243.86, 1,075,058.42 and 312,776.44

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Solution

The fourth proportional to 717,243.86, 1,075,058.42 and 312,776.44 is: 468,812.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    717,243.86 : 1,075,058.42 = 312,776.44 : x
  2. Step 2: Convert to fraction form
    717,243.86/1,075,058.42 = 312,776.44/x
  3. Step 3: Cross multiply
    717,243.86x = 1,075,058.42 × 312,776.44
  4. Step 4: Simplify right side
    717,243.86x = 336,252,945,399.63
  5. Step 5: Solve for x
    x = 336,252,945,399.63/717,243.86
  6. Step 6: Final answer
    x = 468,812.58

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.